Sentence examples for reason is not clear from inspiring English sources

The reason is not clear.

The reason is not clear and needs further investigations.

The reason is not clear, but he said the patients might not expect emotional support from doctors.

The findings, published in the journal Alimentary Pharmacology and Therapeutics, found stronger links between filter coffee and reduced cirrhosis risk than with boiled coffee - but the reason is not clear.

He told his parents that he had been moved away from the rest of the detainees -- the reason is not clear -- and that as a result he saw only military police officers.

Although the detailed reason is not clear, the ethanol plays a very important role in the synthesis of iron foams.

But these results appeared only in female dogs; the reason isn't clear.

The exact reason was not clear.

Occasionally, the attacks stopped for two-week periods, Mandiant said, though the reason was not clear.

Activists said that a Turkish driver was killed as he was driving through the same village, though the reason was not clear.

The reason was not clear, though it could relate to hormonal factors during adolescence, said Dr. Martin Andersson, who led the study.